Modern Balloons and Airships: The History and Legacy of Dirigibles during the 20th Century
Modern Balloons and Airships: The History and Legacy of Dirigibles during the 20th Century3,5 2 5 Автор: Charles River Editors Разказвач: David Bernard
In December 1903, the brothers had done enough scientific work with concepts like lift to help their aeronautical designs, and they had the technical know-how to work with engines. On December 17, the brothers took turns making history’s first successful powered flights. The fourth and final flight lasted nearly a minute and covered nearly 900 feet. The Wright Flyer I had just made history, and minutes later it would be permanently damaged after wind gusts tipped it over; it would never fly again.
A decade later, aircraft appeared in the skies over the battlefields of World War I, but they did not represent a complete novelty in warfare either, at least not during the early months of World War I. While airplanes had never before appeared above the field of war, other aerial vehicles had already been in use for decades, and balloons had carried soldiers above the landscape for centuries to provide a high observation point superior to most geological features. The French used a balloon for this purpose at the Battle of Fleurus in 1794, and by the American Civil War, military hydrogen balloons saw frequent use, filled from wagons generating hydrogen from iron filings and sulfuric acid.
Повече информация за аудиокнигатаИздателство: Charles River Editors
Дължина: 2ч. 16мин.
Ще имате добра книга под ръка навсякъде и по всяко време!
Четете и слушайте толкова книги, колкото пожелаете! Сваляйте книги за офлайн слушане, потопете се в различни истории едновременно, изберете книги за децата си или дайте шанс на заглавия, от които не сте се интересували преди. Време е да започнете нещо ново и вълнуващо, и да се потопите в света на добрите истории!Пробвайте безплатно за 14 дни